22 lines
979 B
C
22 lines
979 B
C
// RUN: %clang -S -emit-llvm -o - -O0 %s | FileCheck %s --implicit-check-not="call void @llvm.lifetime" -check-prefixes=CHECK
|
|
// RUN: %clang -S -emit-llvm -o - -O1 %s | FileCheck %s --implicit-check-not="call void @llvm.lifetime" -check-prefixes=CHECK,LIFETIME
|
|
// RUN: %clang -S -emit-llvm -o - -O2 %s | FileCheck %s --implicit-check-not="call void @llvm.lifetime" -check-prefixes=CHECK,LIFETIME
|
|
// RUN: %clang -S -emit-llvm -o - -O3 %s | FileCheck %s --implicit-check-not="call void @llvm.lifetime" -check-prefixes=CHECK,LIFETIME
|
|
|
|
extern void use(char *a);
|
|
|
|
// CHECK-LABEL: @helper_no_markers
|
|
__attribute__((always_inline)) void helper_no_markers(void) {
|
|
char a;
|
|
// LIFETIME: call void @llvm.lifetime.start.p0(i64 1,
|
|
use(&a);
|
|
// LIFETIME: call void @llvm.lifetime.end.p0(i64 1,
|
|
}
|
|
|
|
// CHECK-LABEL: @lifetime_test
|
|
void lifetime_test(void) {
|
|
// LIFETIME: call void @llvm.lifetime.start.p0(i64 1,
|
|
helper_no_markers();
|
|
// LIFETIME: call void @llvm.lifetime.end.p0(i64 1,
|
|
}
|